Machine for casting stereotype printing plates



MACHINE FOR CASTING 'TER Filed oct. 3o, 1926 Aprilr l5, v1930. M. w. BRUESHABER EOTYPE PRINTING PLATES 3 Sheets-Sheet l April l5, 1930.- M. w. BRUESHABER 1,755,098

MACHINE FOR CASTING STEREOTYPE PRINTING PLATES Fjled Oct. 50, 1926 3 Sheets-Sheet 2 c .MARTIN'W BBUESHABER, or CHICAGO, ILLNOIS 'FEC/Ef Y f 'j Y MACHINE Fon'c.l.i s'.r11\crfsrrnierzocrvrn'rnznvrnvcarLAtrnsk Y y Apinieation mea eclatery eo,A 192,6. `rserial No. 145,361.A

The invention relates to machines for castyThe present'invention is directed to `mak- '.ingstereotype printing plates and more'par- `ing a simple vstereotype plate'castingma- 'ticularly to mechanism Voperating automatichine, very much along standard lines so: far

'cally tostrip'the plate" and matrix apart yand as concerns its general features, while adding Y i5 to lift the plate free'fromV the drag so that thereto, orintroducing thereinto,unovel fea-'s55 yitLmay b e readily removed therefrom for tures and instrumentalities"operating orcontrimming or other `.subsequent operations. ducing to render the machine largely auto-f'` f Objects and advantages of the invention matic or approximately so; to yfacilitate the will be set forth in part hereinafter and in discharge andthe handling of the hot` plate "10 part will be obvious'vherefrom, or may be preparatory to finishing; 'to yquicltlyandf'o learned by practice with the invention; the easilyY stripV the castV plate from the, matrix Y same being realized and attained by and to separate or space it from the wall of j means of instrumentalities and lcombinations the dragpreparatory to itsremovalfrom `the "pointed outin theappended claims. casting machine, either manually or by a ma- .Y 15' Theinvention. 'consists in the novel parts, chine, and to effectuate the foregoingby sim- 6.5

'.constructions," arrangements, combinations ple, sturdy :and reliablemechanism, operatf and improvements herein shown *and deving'automatically in the ordinary operation,l

l' scribed. 1 orl bythe usual movements, of the ypartsfo'f .The laccompanying. drawings, referred to the casting machine. 'Other features and ob'- Z-,hereiniand constitutingaipart hereof, illuss jects than those-enumerated will be setfforth'7r0 trate onei embodiment offthe'invention, and inconnection with ythe .detaileddescription n together with the description, serve tov exof the machine.v y Y c plain theiprinciplesof the invention. In the embodied form, devices are provided f j Ofthe drawings :-y engaging with eachend, preferably each. ar-

225 #Figxlv is a side elevation showing Va kmacuate end, of the cast plate to liftvthe plate '75 v chineembodying the invention in the plate clear fromgthe matrixV and the wall ofv the delivering position; l drag. ,PreferablyV in connection therewith, 'Y faFig. 2v isaside elevation andk vertical secas embodied, a plate iscast hav-ing a tail at -tion of the machineof Fig. 1 in plate delivereitherv end, or a tail at thebottom anda riser 30:'inffiyposition; Y 1 at the top,the plate lifting devices engagingvc 35 ',.line'444 of Fig- 35 l Fig. 3 is partly'a side elevationand partly with the two tails, and lifting the plate clear "a :vertical longitudinal` section through the of the matrix and thedrag wall, and thereby imachine in the plate discharging position; positioning the plate so that it `may bere- Fig. '.4 is Va vertical transverse section on moved either manually or by mechanism Y without danger of injury to the matrix or toff85 .:Fig. l5 is a horizontal section taken on line Vthe plate.'y y -V l.' -15-5 of Fig. 3;`and v Y As Vembodied further, the platerli'fting FigQG is a fragmentary detail showing a members are nested inthe wall ofthe drag manual control for the plate removing mechaduring the Vcasting operation and', are pro- 40. nism. y s Y I 'Y jectedr from their nests 0r seats to lift the-90 ."This application is directed to subject matplate as described. The plate lifting memter `divisible from my Patent No. 1,514,757, bers are preferably two arcuate saddles nested granted November 11,1924. j in recesses in the drag wall and, when pro- Figs. 3,4, 5 and 6 herein are the same as jected, engaging the tails at either end'ofthe f i "Figs. 12, 13,14 and 15 ofthe parent case. plateto strip it from the matrix 'and lift itzgfV Figsbl and 21 of Athe present drawings are free from the drag. The saddles are-,prefmade fr0m--Figs. Zand 3of the vparentrcase erably spring pressed into their nests and .asthey would appear with ythe mechanism are automatically moved theref-rom to` lift Y of vFigs..12 to 14 thereof, that is, Figs. 3 *toV 5 the plate from the matrix and the drag wall. j '-:of this application. f Y v vReferring-to'the'embodiment of the lnveni100 tion illustrated by way of example in the accompanying drawings, a casting machine is shown having a vertical stationary core anda traveling drag, the plate being carried away from casting position in the drag, the dra-g traveling preferably to a horizontal position for the delivery or removal of the plate.

Means are provided by the invention for stripping the plate from the matrix, and for removing and positioning the plate for ready removal from the drag, either manually or by the operation of the mechanism.V ln connection with the embodied form of such means, they operate automatically'through the travel of the drag, and preferably upon the plate and drag arriving at delivery position. Furthermore, the machine is preferably capacita-tedto cast a plate having a tail or projection at each curved end thereof, the

automatic plate removing'means engagingv these tail or projecting portions of the plate in the removing action. Other features and details of the invention will be pointed out at later points in connection with the detailed description of the invention. Y

yIn said embodied form, as herein illustrated in an exemplary manner, the convex or core 1 is vertically arranged or positioned,` and is preferably fined in position upon the` base 2 of the machine. VThe core may be provided with cooling devices and the like, of any suitable or approved form, but they are not shown in the drawing as they constitute no direct part of the present invention.

In the embodied form, the concave or drag 3 travels to and fro between a 'vertical position in cooperation with the core 1 `for casting the plate, and a horizontal position for the delivery of the plate, the latter position being shown in Figs. 1 and 2 of the drawings. The drag may be provided with cooling devices, if desired. Y

Means are provided for locking the core and drag together-during the casting operation, and the illustrated form thereof comprises a pair of pins or lugs 4 atrone end, and upon the opposite sides, of the drag and a pair of pins 5 located at the other end of, and upon opposite sides of the drag. Cooperating with the pair of lugs 4, respectively, are a pair of hooks 6, fixed on a. shaft 7, which shaft is positioned transversely to the core and is mounted at the back thereof in bearings upon the machine structure. Co-operating with the pair of pins 5, respectively, are a pair of hooks 8, which are'fixed on a shaft 9, this shaft being likewise located transversely and at tlie'back of the core land being journaled in suitable bearings. Means are provided for causing the two pairs of hooks to move concurrently or simultaneously, and as embodied, an arm 10 is fixed to shaft 7, and an arm`11 is fixed to shaft-9, these two arms being connected together by a link 12. A handV lever 13 is shown for actuat- Y guiding the drag` to and frobetween the plate casting'and plate discharging positions, and suchmeans may be of any` suitable form so far asconcern's'certain' features of the invention. n As embodied, a pair of lugsfl and 17 project from the'back or exterior of the drag 3, and loosely carried in internal apertures in these lugs is a shaft 18, vthe shaft having suitable means-for restraining it from y Shaft 18 is likelongitudinal movement.

- wise loosely mountedin a pair Vof arms 21 and 22 at one end of the arms, andattheir opposite ends these arms 21 and 22 arefixed to a shaft 24, by suitablemeans such as pins 25V and 26. The shaft 24 is mounted .to rock or partially rotate to and fro 1n bearings 27 and 28, formed in the machine framek 29. Suitable means are provided for so rocking or partially rotating to and Vfro the shaft 24, which means may be operated manually or by a machine, and as shown herein a hand lever 30 is fixed to one end of `\he shaft 24- for this purpose.

Also constituting a part of the means for traveling the drag'to and fro, there is 'provided inthe present embodiment, cooperating with the foregoing mechanism, a pair of pintles 85', which 4project from the drag 3 at the opposite sides thereof.' Mounted on the respective pintles Vare pair of rollers 36, these rollers running on a pair. of trackways 37 formed on the opposite sides of the machine frame.

lnconnectionV with these, means are ,provided for lookingV the drag in theplate-dis` Vcharging position, and as embodied, a pair of hooks 38 are pivotally mounted,respectively, on the opposite sidesofthe machine frame, upon corresponding pivot pins 39. The hooks 38 are provided-at their forward ends with bevel faces 40, and at their opposite ends withtails 41. "The operation ofthese locking devices will be clear from Fig. 1. The projecting ends of the pintles of rollers 35, as the drag` rocks from the plate-casting position to the plate-discharging position Fig. 1, yengage with therbevel faces 40 of the hooks, and the hooks thereupon swivel on their pivotsto receive the pintles 85 and to thereby lock the drag in the position of Fig. 1.` By

rocking the hooks bymeans` of their tails 41, they will be unlocked or disengaged from the pintles preparatory to the returnV travel of the drag to the plate-casting position of Fig.

lfTliese devices so far as concerns many features ofthe inventlonwill be of any approved or suitable form,.but as shown herein f theylare similar ytothose shown and describedv 'f vin said Patent ANo. f'1,509 ,0"7;8 ofAlb'ert A.. LHenZi. 'n

In Figs3 to of the drawingsay present preferred form ofmeans is provided opera` `ble by the workmanforactuating the saddles orplate lifting-members.- In this embodi-` ment, said means is'v shown ycooperating with the recessable back in the drag behind the matrix sheet 45j, and theend yrings for'thev-curved ends of thematri'x'lare separatefrom 'fthe saddles or plate lifting devices. It'will "be understood without rfurther amplication operativefposition `with'i'espect to fthe two rods 112, respectively, arerods 116mounted i 40 Y 130,and a Spring 131 in tension between the;

IVmechanism could'be'applied to the unitary `form of end ringsand Saddles. j Y #Referring now indetail to said embodi- Y the end rings 109. 'i The end rings 109`7overwork in apertures transversely centrally Vterior endsth'e rods 1112 are providedwith naled in "the machine frame; "'Fixedfon shaft of the drawings, that this workman-operated mentl shown inFigs. 3 to 5, saddles 1-10'of arcuate Tformare located vnear each end of thedrag-3, and arenested in recessesr 111 in' Ahang the edges Vof the matriz( sheet 45,-as shown in Figs2andi3. The'saddles110 are xed upon rods 112, respectively, which. rods located in the body of the. drag 3.l The sad'- dles are resiliently heldin their. seats .in the respective recesses 111Lbyl suitable means, and as showncoiled springs'113 encircle the rods 112, within enlarged"r apertures .iny the A'drag 3,'the springs being in compressionV between the lbottoms ofthe apertures and collars 114, fixedjonthe1rods'112. At their eX- rollers 115. Y

vvMounted .on'ithe machine rame, Linlco-Y for longitudinal'reciprocation in corresponding guiding Yrackets or lugs 117 mounted' on f "the: machine frame.

5 The left hand rod.1161inFigf3fhas its bot-fy tom en'd'pivotally connected-at 118 toaniarm 119, which arm vis'iixed on -ajshaft 120, jour- 120. isan' arm` 121, pivotally connectedL at its outer end122 to aconnecting linlrfl23,iand

lthe otherend y124 of link 123 -isfconnected tof anarmv125, whiclifisxed to a-lshaftl26, journaledy in the machine'frame. Fixed to yshaft'126'is an..arm.127,"which is 'pivota'llyVV connected at 128 to thevbottom end ofthe kother rod. 116.

J-FiXedalso to the shaft 126 is av pedal l'lever machine frame and a-pinz132,-iixed in "rod 116, tends-to bring-the mechanism to the posiytion of lFig.p3. 'Fixed to lever 130 is a seg-y ment y133./having-thereinagnotch 134. A

pedal lever 135 is pivotally supportedat136 on the machine frame, and at its opposite end 137is pivotally connected to a-rod 138 reciprocable inan` apertured l'ug...139:onl"the Vmachine frame. A coiled spring v'140 "is vpart' ofthe lever 135.

" ferred to.

goes

may be regarded as -intheposition-of Fig. 2

when the drag 3v is at casting' position.v As

.thedragfrocks'downwardlyto the positionfrg75 Y ofwFig'.A 3` the rollers 115 engage against the y tops of the corresponding rods 116", and as these are locked in position bytheenga'ge ment of tooth 142 with notch 134, the saddles 110 arelifted to theposition VofFig; 3. lifting'.:.="80

Vthe ,plate 49 clear of the matrix. The automatically operating matrix stripping devices Y will clear the matrix sheet 45 from th'e'cast .'plate49. Thesedevices may be oi'fv'any suit V-able form. *suchas the automatically oper-:85

ating clampsoi the Henzi patent 'already lre' After the plate 49 is removed, the workman canu stepf on lever. 135@ whereupon notch 134 Vwill ibe released from'tooth142, and springs-o "1:13'will force the saddles 110 backV into their seats 11,'jfat the same time rocking lever130 -in clockwise Adirectionand moving notch 134 away fromtooth142.'.l The saddles are thus out of' the way in `changing matrix SheetSj-fi `When the dra'g'. 3 Vis again .swung upwardly to casting position, the rollers ^willmove lawayffgom the rods 116, spring 131fwill lift -.the 'rods.116,andfwill thereby swing lever.'y :1,30 until tooth142`again engages in not'clr'loo 134'. thereby locking the rods 116'in1position to operate inv the manner alreadyY described when the drag. 3 again lswings downwardly to platedelivering position. The foot pedal 1 v may be employed to restorethe mecha-F5105 nismto 'the' position of'Fig. 3, should this be desired whenrthe weight of theplate is on themeohanismor at any time after the release rlever has been operated.

Means are provided by 'the invention` for'iio manually operatingthe"recessable baclr3 of Vrthe drag3. y' This recessable baekis employed -partly'to Aeiect Vclearance and stripping of the `matrix 'from VVthe castplate while the plate is still lying inl position within the'i'115 drag, and the'recessable backmayhave the construction andinanner of operation of the similar `mechanism shown and described in said Patent No. 1,509,078, of AlbertA. Henzi,

for Vmovingfthe back to and fro.'

Bythe presentinvention meansl are piro-V vided fory additionally movingthe back manually, so that the back be moved up. that 'including the automatically operating meansY `120 is, inwardly tocasting position, when the" i125' matrix rsheet is changed, to determine Y` whether or lnotthere is a true and smooth .fit of vthe new matrix sheet-as held by the side gages or stripping clamps and bythe end rings when these are in'casting positionfi3 As herein embodied the mechanism of the i'ecessable back may be the same asin said Patent No. 1,509,078, and the mounting of the back in the dragneed not be described in detail.

The arm Y150 is pivotally mounted `at153 in lugs 151, fixed to thevrecessable bacl 3', the arm being joiirnaled on an eccentric 152 mounted on shaft 18. The arm 154 is fixed to eccentric 152, and its outer end is pivotally connected at 155 to a rodv 156. This mechanism so far as described is substantially the same as that in the Henzi patent referred to.

The other end of rod 156 Vis not pivoted to a fixed point on the frame, but is pivoted at 158 to an arm 159, which arm is fixed on a V shaft 160, journaled in the machine frame.

ixed on'shaft 160 is a hand lever161, having a spring latchmechanism 162, Which has a latch 163 adapted to engagefwith a toothed Y sectorl164, mounted on the machine frame..

'Vhen hand lever 161 is'left in locked position, the mechanism YWill operate the recessable back automatically as the drag 3 moves 'Y to and frobetween plate casting and plate delivery positions, as the bearing 158 furnishes a fixed bearing whereby rod 156 may operate eccentric 152 to move the back 3 to and fro as the Adrag 3 travels; 1When drag 3 is at rest, hand lever 161 can be operated by a Workman and the eccentric 152 thereby rocked and the movement of the back 3 to and from casting or matrix sheet supportingV positionmay be eectedgvhile the drag 3 is at rest, to lit the Vconvenient or desirable.

new matrix sheet in position inthe drag, or to prelimmarily inspect its conditionprior to casting, or for other purposes as may be The invention in its broader aspects is Vnot limited to the specific mechanisms shown and described but departures may be made therefrom Within the scope of the Vaccompanying claims Without departing from the principles ofthe invention andvvithout sacrificing its chief advantages.

What I claim is 1. A machine for casting stereotype plates Y including in combination cooperating casting ing members including a drag having a recessable back behind the matrix and means operable by an attendant for moving therecessable back to supporting position behind the matrix. Y

4. In a stereotype plate casting machine an end ring overhanging the matrix edge and a plate lifter moving independently from the end ring for lifting the cast plate from the matrix.A .Y

.-5. ln a stereotype plate casting machine `an end ring overhanging the matrix edge fand a plate` lifter moving independently from the end ring for separating the cast plate from ythe matrix. l i

6. In aV stereotype plate casting machine a Vstationary end ring overhanging the end of the vmatrix sheet and a movable plate lifter for separating the cast plate from thematrix.

7'. In a stereotype plate' casting Vmachine an end ring overhanging the matrix edge and a plate lifting device exteriork to the end ringfor lifting the plate from the matrix. Y

8. In a stereotype plate casting machine a curved end ring overhanging the matrix sheet on its convex side and a plate lifting device engaging the convex side of the plate. Y

9. ln a stereotype plate casting machine a curved end ring overhanging the matrix sheet on its convex side and la platelifting device engaging the convex side of tlieplate exteriorly to said end ring.

10. A stereotype plate casting machine including in combination casting mechanism includinga drag, a pair of end rings overhanging the edges `of the matrix andmeans movable relativelyv to the end rings for lifting the cast plate from the matrix. Y v

11.' A stereotype plate casting machine including in combination casting mechanism including a drag, a pair of end rings overhanging the edges of the matrix and means located exteriorly to and movable relativelyto the end rings for lifting the cast plate from the matrix.

12. A machine for casting stereotype plates Y, including in combination cooperating casting members-including a drag having a recessable back behind the matrix and means for 'movin'gthe recessable back to and from casting position and meansfor lifting the plate fromthe drag.V

13..l A machine for casting stereotype plates, comprising'a drag having a recessable back behind the matrix, means for moving said recessable back, and automatically operated means for lifting the cast plate from the drag.

14. A machine for casting stereotype plates, comprising a. drag having a recessable back behind the matrix, means operated automatically by the movement of the drag to and from casting position for moving the recessable back to and from casting position, and means operating automatically for lifting'the cast plate from thel drag. Y Y Y 15. A machine for casting stereotype plates,

comprising an end ring, a plate lifting device movable With respect to said ring andV nested therein, and means for moving said plate lifting device/With respect to the end ring.v

16. A machine for casting stereotype plates, comprising an/end ring overhanging the edge i .v of the matrix sheet, a plate lifting device -vmovable With respect to the end ring and nested in a recess therein, and means for moving said plate lifting device With respect to y the end ring.

17. A machine for casting stereotype plates, comprising a drag havingl a recessable back Vbehind the matrix, an end ring overhanging the edge of the matrix, and means for lifting the ca'st plate from the matrix.

18. A machine for casting stereotype plates, comprising a drag having a recessable back behind the matrix, end rings the inner edges yof which overhang the edges of the matrix,

and means movable independently of the end rings, for 1lifting the cast plate away from the matrix. Y

19. A machine for castingstereotypeplates, comprising a drag, endl rings associated With 2.5. 'A machine for casting stereotype plates including. in combination cooperating casting members including a drag having a recessable back for supporting the back ofthe i vmatrix, means manually operable by an attendant and automatically operable When the drag reaches a predetermined position for moving therecessable back to and from casting position.

26. A machine for casting stereotype plates ing members including a drag having a rey y cessable back behind the matrix, means operatively connected With the recessable back for movingv it to and from casting position, and means actuated either by an attendant,

or actuated Ayvhen'the drag reaches a definite f predetermined position, for moving the first mentioned means. f Y

In testimony whereof, I have signed my name to this specification. f

MARTIN W. BRUESHABER.

the drag for engaging the matrix, and lifting means for lifting the cast plate from the matrix, the matrix being held inv position by the end rings ready for the next casting operation. f Y

20. A machine, for casting stereotype plates,

comprising a drag, end rings associated With ythe drag for engaging the matrix, and lifting means nested in the end rings for lifting the cast plate from the matrix, Vthe matrix being held in position by the end rings ready for the next casting operation. f

'22. A machine for casting stereotype plates, y comprising a drag, end rings associated With the drag for engaging the matrix, and lifting means passing through the drag for lifting the cast plate from the matrix, the matrix Y being held in position by the end rings ready for the next casting operation.

23. A machine for casting stereotype plates, v

comprising a drag, end rings overhanging thel edges vof the matrix sheet associated With the drag, lifting saddles for lifting the cast plate fromthe matrix, the matrix being held in position ready for the'next casting operation by the overhanging parts of the end rings.

24. A machine for casting stereotype plates, comprising a drag, end rings overhanging Vthe edges of the matrix sheet associated With the drag, lifting saddles ynested in the end rings' for lifting the cast plate from the matrix, the matrix being heldin position vready for the next cooling operation Aby the overhanging parts of the end rings.

izo

including in combination cooperating cast- ,75 Y 

